Name
- Foreign Office, 1782-19686
- Board of Trade, 1786-19702
- Government of India, Foreign and Political Department, 1783-19372
- Secretary of State for Foreign Affairs, 1782-19682
- United States Federal Government, 1789-2
- British Bank of Iran and the Middle East, 1889-19521
- Commander of the Mesopotamia Expeditionary Force, 1914-19201
- Director-General of the Persian Postal Service, Early 20th century1
- Euphrates and Tigris Steam Navigation Company, 1861-19601
- General Post Office, 1660-19691
- Government of India, Indian Munitions Board, 1917-1919?1
- Government of the Ottoman Empire, 13th century-20th century1
- HM Ambassador to the Ottoman Empire, 1583-19141
- Permanent Under-Secretary of State for Foreign Affairs, 1790-19681
- Permanent Under-Secretary of State for India, 1858-19351
- Political Resident, Persian Gulf, 1822-19711
- Selim Homsy and Company, dealer and auction house, Late 19th century – Early 20th century1
- Turkish Post, 1840-1
- Viceroy and Governor-General of India in Council, 1773-19471
- War Office, Director of Raw Materials, 1917-1923?1